Astronomer Richard Mueller created the Nemesis Theory to explain why the comet that killed the dinosaurs came hurtling to Earth. The Oort Cloud is a region of the solar system where comets freeze and remain before they hurtle toward the sun.
Mueller believes the sun's nemesis is a red dwarf star which changes the orbits of comets and forces them onto a different route; 60-70% of stars are binary. The center of mass concept dictates that objects of similar mass rotate around an invisible center; the twin of the sun will have a much smaller mass, making rotation irregular.
The Wide-field Infrared Survey Explorer could discover whether the sun's nemesis exists. A demonstration at a racetrack displays how infrared technology can detect planets. Scientists have difficulty spotting objects within our solar system because they do not produce as much visible energy.
Something appears to be disturbing comets within the Oort Cloud, leading scientists to fear another mass extinction. Some theorize a giant undiscovered planet is responsible for the disturbance; Mike Brown discovered the unusual planetoid, Sedna.
Sedna was thrown from the solar system when it interfered with the orbit of several other planets; a star pushed it further. Some astronomers believe a dark, reddish star entered the Oort Cloud, signaling a change in the solar system is coming.
Credits: The Sun's Evil Twin
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Could there be a monstrous, undiscovered star orbiting our own Sun? Could it be scattering killer comets throughout our Solar System like clockwork every 26 million years?
Length: 45 minutes
Copyright date: ©2011
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Our Place in the Milky Way
How the Solar System was Made
Science Fiction, Science Fact
Worst Days on Planet Earth
Living in Space
It Fell from Space
Biggest Things in Space
Ride the Comet
Mars: The New Evidence
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